<template>
  <div>
    <!-- 面包屑当行区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图 -->
    <el-card class="box-card">
      <!-- 搜索输入框 -->
      <div style="margin-top: 15px;">
        <el-row :gutter="0">
          <el-col :span="8">
            <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query">
              <el-button slot="append" icon="el-icon-search" @click="getUserList" clearable></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
          </el-col>
        </el-row>
        <!-- 用户列表区域 -->
        <el-table :data="userlist" border stripe>
          <el-table-column type="index" label="序号"></el-table-column>
          <el-table-column prop="username" label="姓名"></el-table-column>
          <el-table-column prop="email" label="邮箱"></el-table-column>
          <el-table-column prop="mobile" label="电话"></el-table-column>
          <el-table-column prop="role_name" label="角色"></el-table-column>
          <el-table-column label="状态">
            <template slot-scope="scope">
              <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
              <!-- 修改按钮 -->
              <el-button
                type="primary"
                icon="el-icon-edit"
                @click="editShowEditDialog(scope.row.id)"
                size="mini"
              ></el-button>
              <!-- 删除按钮 -->
              <el-button
                type="danger"
                icon="el-icon-delete"
                @click="removeUser(scope.row.id)"
                size="mini"
              ></el-button>
              <!-- 分配角色按钮并且带有消息提示 -->
              <el-tooltip
                class="item"
                effect="dark"
                content="分配角色"
                placement="top"
                :enterable="isEnter"
              >
                <el-button
                  type="primary"
                  icon="el-icon-setting"
                  @click="setRoles(scope.row)"
                  size="mini"
                ></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
      </div>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <!-- addForm是数据绑定对象，表单项中的v-model是数据绑定对象 -->
      <el-form :model="addForm" :rules="addFormRules" ref="ruleFormRef" label-width="80px">
        <el-form-item label="用户名称" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" ref="editFormRef" :rules="editFormRules" label-width="80px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱">
          <el-input v-model="editForm.email" prop="email"></el-input>
        </el-form-item>
        <el-form-item label="手机">
          <el-input v-model="editForm.mobile" prop="mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRolesDialogVisible"
      width="30%"
      @close="setRolesDialogClosed"
    >
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>
          分配新的角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRolesDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data () {
    // 邮箱校验规则，value就是要校验的值
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
      if (regEmail.test(value)) {
        // 验证通过，直接调用回调函数
        return cb()
      }
      cb(new Error('邮箱格式不正确'))
    }
    // 手机校验规则
    var checkMobile = (rule, value, cb) => {
      const regEmail = /^(13[0-9]|14[5|7]|15[0|1|2|3|4|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('手机号码格式不正确'))
    }
    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 5
      },
      userlist: [],
      total: 0,
      isEnter: false,
      // 控制添加用户的对话框显示
      addDialogVisible: false,
      editDialogVisible: false,
      // 添加用户的表单数据绑定
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      editForm: {},
      // 修改用户的表单验证规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 添加用户的表单校验规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      setRolesDialogVisible: false,
      userInfo: {},
      // 所有角色的数据列表
      roleList: [],
      selectRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      } else {
        this.userlist = res.data.users
        this.total = res.data.total
      }
    },
    // pagesize改变的监听
    handleSizeChange (newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听当前页码值
    handleCurrentChange (newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 开关状态的改变
    async userStateChange (userInfo) {
      console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 对话框关闭事件处理函数，需要重置表单输入，重置验证结果
    addDialogClosed () {
      this.$refs.ruleFormRef.resetFields()
    },
    // 点击确定，添加用户，在发送请求之前要进行表单的预校验
    addUser () {
      this.$refs.ruleFormRef.validate(async valid => {
        // 校验不通过
        if (!valid) return
        // 校验通过
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        // 请求结果获取成功
        this.$message.success('添加用户成功')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 修改用户的对话框
    async editShowEditDialog (id) {
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败')
      this.editForm = res.data
      console.log(res.data)
      this.editDialogVisible = true
    },
    // 监听修改对话框的关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error('用户信息修改失败')
        this.$message.success('用户信息修改成功')
        this.getUserList()
        this.editDialogVisible = false
      })
    },
    // 根据id删除用户
    async removeUser (id) {
      // 询问用户是否删除数据
      const confirmRes = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmRes !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('用户删除失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    async setRoles (userInfo) {
      this.userInfo = userInfo
      // 在展示对话框之前虎丘所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.roleList = res.data
      this.setRolesDialogVisible = true
    },
    // 保存分配角色信息
    async saveRoleInfo () {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }
      const { data: res } = this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色信息成功')
      this.getUserList()
      this.setRolesDialogVisible = false
    },
    setRolesDialogClosed () {
      this.selectRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>
<style lang="less" scoped></style>
